<template>
  <div class="">
    <el-form ref="form" label-width="80px">
      <el-form-item label="SPU名称">
        {{ spu.spuName }}
      </el-form-item>
      <el-form-item label="SKU名称">
        <el-input placeholder="sku名称" v-model="skuInfo.skuName"></el-input>
      </el-form-item>
      <el-form-item label="价格(元)">
        <el-input
          placeholder="价格(元)"
          type="number"
          v-model="skuInfo.price"
        ></el-input>
      </el-form-item>
      <el-form-item label="重量(千克)">
        <el-input placeholder="重量(千克)" v-model="skuInfo.weight"></el-input>
      </el-form-item>
      <el-form-item label="规格描述">
        <el-input type="textarea" rows="4" v-model="skuInfo.skuDesc"></el-input>
      </el-form-item>

      <el-form-item label="平台属性">
        <el-form :inline="true" ref="form" label-width="80px">
          <el-form-item
            :label="attr.attrName"
            v-for="(attr, index) in attrInfoList"
            :key="attr.id"
          >
            <el-select placeholder="请选择" v-model="attr.attrIdAndValueId">
              <el-option
                :label="attrValue.valueName"
                :value="`${attr.id}:${attrValue.id}`"
                v-for="(attrValue, index) in attr.attrValueList"
                :key="attrValue.id"
              ></el-option>
            </el-select>
          </el-form-item>
        </el-form>
      </el-form-item>
      <el-form-item label="销售属性">
        <el-form :inline="true" ref="form" label-width="80px">
          <el-form-item
            :label="saleAttr.saleAttrName"
            v-for="(saleAttr, index) in spuSaleAttrList"
            :key="saleAttr.id"
          >
            <el-select placeholder="请选择" v-model="saleAttr.attrIdAndValueId">
              <el-option :label="skuAttrValueList.saleAttrValueName" :value="`${saleAttr.id}:${skuAttrValueList.id}`" v-for="(skuAttrValueList,index) in saleAttr.spuSaleAttrValueList" :key="skuAttrValueList.id"></el-option>
            </el-select>
          </el-form-item>
        </el-form>
      </el-form-item>

      <el-form-item label="图片列表">
        <el-table style="width: 100%" border :data="spuImageList" @selection-change="handleSelectionChange">
          <el-table-column type="selection"  prop="prop" width="width">
          </el-table-column>
          <el-table-column prop="prop" label="图片" width="width">
            <template slot-scope="{row,$index}">
                <img :src="row.imgUrl" style="width: 100px;height: 100px;">
            </template>
          </el-table-column>
          <el-table-column prop="imgName" label="名称" width="width">
          </el-table-column>
          <el-table-column prop="prop" label="操作" width="width">
            <template slot-scope="{row,$index}">
                <el-button type="primary" v-if="row.isDefault==0" @click="changeDefault(row)">设置默认</el-button>
                <el-button v-else>默认</el-button>
            </template>
          </el-table-column>
        </el-table>
      </el-form-item>

      <el-form-item>
        <el-button type="primary" @click="save">保存</el-button>
        <el-button @click="cancel">取消</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
//这里可以导入其他文件（比如：组件，工具js，第三方插件js，json文件，图片文件等等）
//例如：import 《组件名称》 from '《组件路径》';

export default {
  //import引入的组件需要注入到对象中才能使用
  components: {},
  data() {
    //这里存放数据
    return {
      //存储销售属性数据
      spuSaleAttrList: [],
      //存储平台属性的数据
      attrInfoList: [],
      //存储图片的信息
      spuImageList: [],
      //收集sku数据的字段:但是需要注意，收集的数据目前缺少isDefault字段，将来提交给服务器数据的时候，需要整理参数
      skuInfo: {
        //第一类收集的数据，父组件给的数据
        category3Id: 0,
        spuId: 0,
        tmId: 0,
        //第二类收集的数据，通过数据双向绑定v-model收集
        skuName: "",
        price: 0,
        weight: "",
        skuDesc: "",
        //第三类：需要自己数据写代码
        //默认图片
        skuDefaultImg: "",
        //收集图片内容
        skuImageList: [
          {
            // id: 0,
            // imgName: "string",
            // imgUrl: "string",
            // isDefault: "string",
            // skuId: 0,
            // spuImgId: 0,
          },
        ],
        //平台属性
        skuAttrValueList: [
          {
            // attrId: 0,
            // valueId: 0,
          },
        ],
        //销售属性
        skuSaleAttrValueList: [
          {
            // id: 0,
            // saleAttrId: 0,
            // saleAttrName: "string",
            // saleAttrValueId: 0,
            // saleAttrValueName: "string",
            // skuId: 0,
            // spuId: 0,
          },
        ],
      },
      //spu
      spu: {},
      //收集图片的数据字段
      imageList:[],
    };
  },
  //监听属性 类似于data概念
  computed: {},
  //监控data中的数据变化
  watch: {},
  //方法集合
  methods: {
    //获取skuForm数据
    async getData(category1Id, category2Id, spu) {
      //收集父组件给予的数据
      this.skuInfo.category3Id = spu.category3Id;
      this.skuInfo.spuId = spu.id;
      this.skuInfo.tmId = spu.tmId;

      this.spu = spu;
      this.attrInfoList = spu.attrInfoList;

      //获取图片的数据
      let result = await this.$API.spu.reqSpuImageLIst(spu.id);
      if (result.code == 200) {
        let list = result.data;
        list.forEach(item=>{
            item.isDefault = 0;
        })
        this.spuImageList = list;
      }

      //获取销售属性的数据
      let result1 = await this.$API.spu.reqSpuSaleAttrList(spu.id);
      if (result1.code == 200) {
        this.spuSaleAttrList = result1.data;
      }

      //获取平台属性的数据
      let result2 = await this.$API.spu.reqAttrInfoList(
        category1Id,
        category2Id,
        spu.category3Id
      );
      if (result2.code == 200) {
        this.attrInfoList = result2.data;
      }
    },
    //table表格复选框按钮的事件
    handleSelectionChange(params){
        //获取到用户选中图片的信息数据，但是需要注意，当前收集的数据中，缺少isDefault字段，需要处理
        this.imageList = params;
    },
    //排他思想
    changeDefault(row){
        //图片列表的数据的isDefault字段变为0
        this.spuImageList.forEach(item=>{
            item.isDefault = 0;
        });
        //点击的那个图片的数据为1
        row.isDefault = 1;
        this.skuInfo.skuDefaultImg = row.imgUrl;
    },
    cancel(){
        //自定义事件，让父组件切换场景为0
        this.$emit('changeScenes',0);
        //清除数据
        Object.assign(this._data(),this.$options.data());
    },
    async save(){
        //整理参数
        //整理平台属性
        const {attrInfoList,skuInfo,spuSaleAttrList,imageList} = this;

        //整理平台属性
         skuInfo.skuAttrValueList = attrInfoList.reduce((prev,item)=>{
            if(item.attrIdAndValueId){
                const [attrId,valueId] = item.attrIdAndValueId.split(':');;
                prev.push({attrId,valueId});
            }
            return prev;
        },[])

        //整理销售属性
        skuInfo.skuSaleAttrValueList = spuSaleAttrList.reduce((prev,item)=>{
            if(item.attrIdAndValueId){
                const [saleAttrId,saleAttrValueId] = item.attrIdAndValueId.split(':');
                prev.push({saleAttrId,saleAttrValueId});
            }
            return prev;
        },[])

        //整理图片信息
         skuInfo.skuImageList = imageList.map(item=>{
            return {
            imgName: item.imgName,
            imgUrl: item.imgUrl,
            isDefault: item.isDefault,
            spuImgId: item.id,
            }
        })
            //发请求
         let result = await this.$API.spu.reqAddSku(skuInfo);
         if(result.code==200){
            this.$message({type:'success',message:'添加SKU成功'})
            this.emit('changeScenes',0);
         }
         console.log(result);
    }
  },
};
</script>
<style lang='scss' scoped>
//@import url(); 引入公共css类
</style>